Method of making a portable and collapsed structure
US4462145A · kind A · utility
Inventor
Key dates
| Filing date | Feb 23, 1981 |
| Grant date | Jul 31, 1984 |
| Priority date | — |
| Expiry date | Feb 23, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49876
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
This invention is a structure encompassing a large volume of area used for traffic delineators, warning and instruction signs, and the like. It is characterized by being formed from materials specially formed and hinged in such manner as to be collapsible for storage and transport when not in use. The structure and the method involved comprises a multiplicity (preferably three) of flat items hinged together in an angular relationship to one another when assembled, to encompass a large volume, but at the same time, so as to collapse into a single flat configuration for storage and transportation, by folding two panels to opposite sides of a center panel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.